/* $NetBSD: bhavar.h,v 1.25 2012/10/27 17:18:19 chs Exp $ */ /*- * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace * Simulation Facility, NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _DEV_IC_BHAVAR_H_ #define _DEV_IC_BHAVAR_H_ #include <sys/queue.h> /* XXX adjust hash for large numbers of CCBs */ #define CCB_HASH_SIZE 32 /* hash table size for phystokv */ #define CCB_HASH_SHIFT 9 #define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1)) /* * A CCB allocation group. Each group is a page size. We can find * the allocation group for a CCB by truncating the CCB address to * a page boundary, and the offset from the group's DMA mapping * by taking the offset of the CCB into the page. */ #define BHA_CCBS_PER_GROUP ((PAGE_SIZE - sizeof(bus_dmamap_t)) / \ sizeof(struct bha_ccb)) struct bha_ccb_group { bus_dmamap_t bcg_dmamap; struct bha_ccb bcg_ccbs[1]; /* determined at run-time */ }; #define BHA_CCB_GROUP(ccb) \ (struct bha_ccb_group *)(trunc_page((vaddr_t)ccb)) #define BHA_CCB_OFFSET(ccb) ((vaddr_t)(ccb) & PAGE_MASK) #define BHA_CCB_SYNC(sc, ccb, ops) \ do { \ struct bha_ccb_group *bcg = BHA_CCB_GROUP((ccb)); \ \ bus_dmamap_sync((sc)->sc_dmat, bcg->bcg_dmamap, \ BHA_CCB_OFFSET(ccb), sizeof(struct bha_ccb), (ops)); \ } while (0) /* * Offset in the DMA mapping for mailboxes. * Since all mailboxes are allocated on a single DMA'able memory * due to the hardware limitation, an offset of any mailboxes can be * calculated using same expression. */ #define BHA_MBX_OFFSET(sc, mbx) ((u_long)(mbx) - (u_long)(sc)->sc_mbo) #define BHA_MBI_SYNC(sc, mbi, ops) \ do { \ bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap_mbox, \ BHA_MBX_OFFSET((sc), (mbi)), sizeof(struct bha_mbx_in), (ops)); \ } while (0) #define BHA_MBO_SYNC(sc, mbo, ops) \ do { \ bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap_mbox, \ BHA_MBX_OFFSET((sc), (mbo)), sizeof(struct bha_mbx_out), (ops)); \ } while (0) struct bha_softc { device_t sc_dev; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; bus_dma_tag_t sc_dmat; bus_dmamap_t sc_dmamap_mbox; /* maps the mailboxes */ int sc_dmaflags; /* bus-specific dma map flags */ void *sc_ih; int sc_scsi_id; /* host adapter SCSI ID */ int sc_flags; #define BHAF_WIDE 0x01 /* device is wide */ #define BHAF_DIFFERENTIAL 0x02 /* device is differential */ #define BHAF_ULTRA 0x04 /* device is ultra-scsi */ #define BHAF_TAGGED_QUEUEING 0x08 /* device supports tagged queueing */ #define BHAF_WIDE_LUN 0x10 /* device supported wide lun CCBs */ #define BHAF_STRICT_ROUND_ROBIN 0x20 /* device supports strict RR mode */ int sc_max_dmaseg; /* maximum number of DMA segments */ int sc_max_ccbs; /* maximum number of CCBs (HW) */ int sc_cur_ccbs; /* current number of CCBs */ int sc_disc_mask; /* mask of targets allowing discnnct */ int sc_ultra_mask; /* mask of targets allowing ultra */ int sc_fast_mask; /* mask of targets allowing fast */ int sc_sync_mask; /* mask of targets allowing sync */ int sc_wide_mask; /* mask of targets allowing wide */ int sc_tag_mask; /* mask of targets allowing t/q'ing */ /* * In and Out mailboxes. */ struct bha_mbx_out *sc_mbo; struct bha_mbx_in *sc_mbi; struct bha_mbx_out *sc_cmbo; /* Collection Mail Box out */ struct bha_mbx_out *sc_tmbo; /* Target Mail Box out */ int sc_mbox_count; /* number of mailboxes */ int sc_mbofull; /* number of full Mail Box Out */ struct bha_mbx_in *sc_tmbi; /* Target Mail Box in */ struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE]; TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb, sc_allocating_ccbs; struct scsipi_adapter sc_adapter; struct scsipi_channel sc_channel; char sc_model[7], sc_firmware[6]; }; struct bha_probe_data { int sc_irq, sc_drq; }; int bha_find(bus_space_tag_t, bus_space_handle_t); int bha_inquire_config(bus_space_tag_t, bus_space_handle_t, struct bha_probe_data *); void bha_attach(struct bha_softc *); int bha_info(struct bha_softc *); int bha_intr(void *); int bha_disable_isacompat(struct bha_softc *); int bha_probe_inquiry(bus_space_tag_t, bus_space_handle_t, struct bha_probe_data *); #endif /* _DEV_IC_BHAVAR_H_ */
